Our device has the same spec and accuracy as the top priced models selling for $10000 and more. This tester has the option to add a D (universal) rebound type test probe with firmaware activation that turns the device into a TCM-UD3. This means you get the best of both technologies, UCI and Rebound. The D type is ideal for Non Ferrous materials, coarse grained parts like cast iron etc. that are not suited to UCI testing. Can be added for only $650

Load

Available Models

Advantage or Benefit

Typical Applications

50N 11.2lbf

UC1

Considered to be the Universal type for most general applications.
11lbs of downward hand pressure is required to activate the probe.
Surface finish equivalent to 80 grind or better.

metals with different properties from steel (for example, non-ferrous metals, alloys, etc.) with five additional scales for calibration; The device can be quickly and easily calibrated to a single specimen of known hardness ( for plus/minus testing ) or to a range of hardness from 2 specimens of the same material and of known upper and lower hardness values. The best is 3 sample specimens of the same material of different hardness. With 3 it is then possible to test through the whole range of hardness values of a material type. The unit has user calibration fields for Steel, Alloy Steel, Stainless Steel, non ferrous materials and several user definable fields. Each in Rockwell C, Brinell, Vickers, plus 2 custom fields for other scales. The tester is supplied with the UCI probe/s pre configured for Steel, using NIST traceable test blocks, in HRC and HB. The tester can be finely calibrated to an exact material type e.g.. P20 or H13 but for most users the general calibration, in this case Alloy Steel is generally accepted. Because the tester can be calibrated to specific materials, that range of material classes and options is enormous and huge advantage of testers that have fixed material types.

use of the scale of tensile strength (Rm) for determining the tensile strength of carbon steel products by automatically converting from the scale of hardness, Brinell (HB);

Implements the method of ultrasonic contact impedance (UCI).

Hardness testing of small parts and difficult to reach places

Hardness of High speed steel cutting blades

Hardness testing of cast iron part with optional Leeb type D probe

Display of soft keyboard to name and store test results

Statistical display of test results

The UCI Hardness Tester TCM-U3 operates according to the Ultrasonic Contact Impedance (UCI) method of hardness testing, and is standardized according to ASTM A 1038. The basic operating principle is that hardness is measured by detecting the frequency shift of a longitudinal oscillating rod fused to a Vickers diamond indenter. The diagonals of the indentation are not optically measured as with traditional Vickers tests, so there is no need for cumbersome optical evaluation with a microscope. Instead, the indentation area is electronically detected by measuring the frequency shift. The shift is proportional to the size of the indentation. This method enables quick and easy measurement: position probe, press to apply the test load, and read off the hardness value. TCM-U3 probes use a Vickers diamond indenter that gives you the precision to position it on a tiny point. Indentations produced by the TCM-U3 are much smaller than equivalent Rockwell indentations, making this one of the least destructive portable hardness testers available. These attributes make the TCM-U3 well suited to these typical applications: - Heat affected zone (HAZ) of welds - Hardness progression curves - Fine-grained materials - Heat-treated materials - Thin layers and coatings - Surface hardened parts - Thin wall pipe - Small parts

Load applied/contact, Single test result, Average of tests, Number of tests, deviation.

Hardness indication

Backlit Color LCD display.

Operating Environment

Temperature:-20℃~40℃; Humidity: 30%~80%R.H

Operating Voltage

DC 6V

Instrument Dimensions

122x65x23mm

Net Weight

Approx. 0.2kg (0.45lb) （Without probe）

Power

3 AA rechargeable batteries

Battery life

Approx. 20 hours. Auto Power off.

Optional D Type Probe Values:

The values below are pre configured for the optional D type (Leeb/Rebound) type probe. The user can also create/customize their own materials and hardness values.

Materials

HRC

HB

HV

HRB

Tensile Strength (MPa)

Steel & Cast Steel

20-68

100-450

240-940

56-93

Alloy Tool Steel

23-66

100-865

Stainless Steel

23-56

115-590

120-690

50-95

Cast Iron

80-280

Nodular Iron

175-390

Aluminum Alloys

55-160

27-78

Brass

40-165

16-92

Bronze

70-275

Copper

45-300

Restrictions on the use of UCI probe

Not specifically suited for measuring the hardness of products with a coarse-grained structure (e.g, cast iron), unheatreated aluminum, or other soft non ferrous materials or parts ( D type probe option can measure those materials ) weighing less than 10 grams (0.35oz), or less than 1 mm (0.04") thick.

TCM-U3 Ultrasonic w/D probe, Wireless Printer, UCI probes etc

by CIMETRIX Staffon 04 Feb 2014

The video shows new features and many other details of the new TCM-U3 color display Ultrasonic Hardness tester. Comparison to TCM-U2
Demonstration of accuracy and ease of use
With D probe option
Wireless printer option
Smart mode test
Histogram
Statistics
etc